nRF52832 late sleep entry

RE: nRF52832 late sleep entry

Jørgen Holmefjord — Wed, 11 Dec 2019 21:37:39 GMT

Maybe a J-Trace would give you some more details on what is happening in your application, but they are quite pricy. I'm also not sure if they will give you details about HW events.

Alternatively, you can use GPIOTE and PPI to toggle GPIOs when events are generated. This would be a very time-consuming process if you do not know which peripheral or event is preventing the CPU from sleeping.

My other recommendation would be to try disabling modules in your application to see if any of these are preventing you from entering sleep mode. If you do this with one at a time, you may be able to close in on where the issue lays.

RE: nRF52832 late sleep entry

u_pj — Wed, 04 Dec 2019 14:55:20 GMT

Hi,

thanks for you reply. We are using SDK 14.2.0 for this project. This is a part of a project consisting of more than 10k lines of code. We are also using our own custom board. I will try to create a simplified version of the project using 10040 DK, but I doubt I will be able to mirror all conditions.

Are there any debugging tools which could help me establish what kind of MCU interrupts / events are interfering with the sleep entry?

Best regards,

RE: nRF52832 late sleep entry

Jørgen Holmefjord — Wed, 04 Dec 2019 11:57:15 GMT

Hi,

Can you please provide some more details on your setup?

Which SDK version are you using?
Are you basing this on an example from the SDK, and what modifications have you made?
Are you testing this on a nR52 DK or on a custom board?
Can you provide a minimal example that can be used to reproduce this behavior?

Best regards,
Jørgen